I had this problem before when I first installed Mastercam X on my Windows 7 64 bit machine.
I've been running it now for 3 years.
I decided to clean up the machine and re-install the OS.
Now I keep getting "HASP not found (15)
.
I installed the old drivers , didn't work
I have gone to the Mastercam site and installed the latest drivers for Mastercam , didn't work
I went to the Sentinel site and installed the latest drivers for the HASP , didn't work
I had it run in Windows XP service pack 3 compatibility mode , didn't work
I did all of the above after hitting pressing F8 during system startup to display Advanced Boot Options, and select Disable Driver Signature Enforcement
.
. I've been running this exact software on this exact system for years .. this should not be this hard ..
Thanks .. K